Statistics Test...

A graph drawn using vertical bars is called

The mean of first six multiples of $$4$$ is

The arithmetic mean of first five natural numbers is

Let $$\displaystyle m$$ be the mid-point and $$\displaystyle l$$ the upper class limit of a class in a continuous frequency distribution. The lower limit of the class is 

The upper class limit of inclusive type class interval 10 - 20 is

The range of observations 2, 3, 5, 9, 8, 7, 6, 5, 7, 4, 3 is

The statistical data are of two types. These types are

The size of the each class intervals is:

The number of times a particular item occurs in a given data is called its

The classmark of a class interval is